spheroid

views updated Jun 27 2018

sphe·roid / ˈsfi(ə)rˌoid/ • n. a spherelike but not perfectly spherical body. ∎  a solid generated by a half-revolution of an ellipse about its major axis (prolate spheroid) or minor axis (oblate spheroid).DERIVATIVES: sphe·roi·dal / sfiˈroidl/ adj.sphe·roi·dic·i·ty / ˌsfi(ə)roiˈdisitē/ n.

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